Anomeric spirocycles by solvent incorporation: reactions of O-peracylated (glyculopyranose and glyculopyranosyl bromide)onamide derivatives with ketones

- Ketone incorporation reactions.
- Preparation of glycopyranosylidene-spiro-(4-imino-1,3-dioxolanes).
- Preparation of glycopyranosylidene-spiro-(oxazolidin-4-ones).